It’s not arbitrary, you just don’t understand it.
I’ve mentioned that using tools is not the end of the world, but slapping together boring prompts that yield stolen, poorly executed jokes is not art. Having AI rip-off other artists it found on the internet is not art. Asking it to write an entire song for you is not art. Most any other time where it’s a tool it’s just a complex algorithm and not really “AI” and it needs to be guided. Being a guide may or may not make someone much of an artist, depending on context.
The pursuit of art is worth more than the end result and I’ll be honest that I have no idea how to explain that to you if you still don’t get it.